Sauvignon Blanc can be a one-glass wine, but this is an example that makes you want to share and finish the bottle. Made for Tesco by long-term supplier Fournier Père & Fils, it’s a wonderfully perfumed, pithy, stony Loire white with notes of green herbs, elderflower and lime, zesty acidity and a chalky, almost salty tang. The best sub-£15 Sauvignon on the high street right now.